src/x11/bitmap.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        bitmap.cpp
   3 // Purpose:     wxBitmap
   4 // Author:      Julian Smart, Robert Roebling
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart, Robert Roebling
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "bitmap.h"
  14 #endif
  15
  16 #include "wx/bitmap.h"
  17 #include "wx/icon.h"
  18 #include "wx/log.h"
  19 #include "wx/image.h"
  20 #include "wx/app.h"
  21 #if wxUSE_NANOX
  22 #include "wx/dcmemory.h"
  23 #endif
  24
  25 #include "wx/x11/private.h"
  26
  27 /* No point in using libXPM for NanoX */
  28 #if wxUSE_NANOX
  29 #undef wxHAVE_LIB_XPM
  30 #define wxHAVE_LIB_XPM 0
  31
  32 // Copy from the drawable to the wxImage
  33 bool wxGetImageFromDrawable(GR_DRAW_ID drawable, int srcX, int srcY, int width, int height, wxImage& image);
  34 #endif
  35
  36 #if wxUSE_XPM
  37 #if wxHAVE_LIB_XPM
  38 #include <X11/xpm.h>
  39 #else
  40 #include "wx/xpmdecod.h"
  41 #include "wx/wfstream.h"
  42 #endif
  43 #endif
  44 #include <math.h>
  45
  46 //-----------------------------------------------------------------------------
  47 // wxMask
  48 //-----------------------------------------------------------------------------
  49
  50 IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject)
  51
  52 wxMask::wxMask()
  53 {
  54     m_bitmap = NULL;
  55     m_display = NULL;
  56 }
  57
  58 wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour )
  59 {
  60     m_bitmap = NULL;
  61     Create( bitmap, colour );
  62 }
  63
  64 wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex )
  65 {
  66     m_bitmap = NULL;
  67     Create( bitmap, paletteIndex );
  68 }
  69
  70 wxMask::wxMask( const wxBitmap& bitmap )
  71 {
  72     m_bitmap = NULL;
  73     Create( bitmap );
  74 }
  75
  76 wxMask::~wxMask()
  77 {
  78     if (m_bitmap)
  79         XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
  80 }
  81
  82 bool wxMask::Create( const wxBitmap& bitmap,
  83                      const wxColour& colour )
  84 {
  85 #if !wxUSE_NANOX
  86     if (m_bitmap)
  87     {
  88         XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
  89         m_bitmap = NULL;
  90     }
  91
  92     m_display = bitmap.GetDisplay();
  93
  94     wxImage image( bitmap );
  95     if (!image.Ok()) return FALSE;
  96
  97     m_display = bitmap.GetDisplay();
  98
  99     Display *xdisplay = (Display*) m_display;
 100
 101     int xscreen = DefaultScreen( xdisplay );
 102     Window xroot = RootWindow( xdisplay, xscreen );
 103     Visual* xvisual = DefaultVisual( xdisplay, xscreen );
 104     int bpp = DefaultDepth( xdisplay, xscreen );
 105
 106     m_bitmap = (WXPixmap) XCreatePixmap( xdisplay, xroot, image.GetWidth(), image.GetHeight(), 1 );
 107     GC gc = XCreateGC( xdisplay, (Pixmap) m_bitmap, 0, NULL );
 108
 109     XSetForeground( xdisplay, gc, WhitePixel(xdisplay,xscreen) );
 110     XSetFillStyle( xdisplay, gc, FillSolid );
 111     XFillRectangle( xdisplay, (Pixmap) m_bitmap, gc, 0, 0, image.GetWidth(), image.GetHeight() );
 112
 113     unsigned char *data = image.GetData();
 114     int index = 0;
 115
 116     unsigned char red = colour.Red();
 117     unsigned char green = colour.Green();
 118     unsigned char blue = colour.Blue();
 119
 120     XVisualInfo vinfo_template;
 121     XVisualInfo *vi;
 122
 123     vinfo_template.visual = xvisual;
 124     vinfo_template.visualid = XVisualIDFromVisual( xvisual );
 125     vinfo_template.depth = bpp;
 126     int nitem = 0;
 127
 128     vi = XGetVisualInfo( xdisplay, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
 129     wxASSERT_MSG( vi, wxT("No visual info") );
 130
 131     if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15;
 132     if (bpp == 15)
 133     {
 134         red = red & 0xf8;
 135         green = green & 0xf8;
 136         blue = blue & 0xf8;
 137     } else
 138     if (bpp == 16)
 139     {
 140         red = red & 0xf8;
 141         green = green & 0xfc;
 142         blue = blue & 0xf8;
 143     } else
 144     if (bpp == 12)
 145     {
 146         red = red & 0xf0;
 147         green = green & 0xf0;
 148         blue = blue & 0xf0;
 149     }
 150
 151     XSetForeground( xdisplay, gc, BlackPixel(xdisplay,xscreen) );
 152
 153     for (int j = 0; j < image.GetHeight(); j++)
 154     {
 155         int start_x = -1;
 156         int i;
 157         for (i = 0; i < image.GetWidth(); i++)
 158         {
 159             if ((data[index] == red) &&
 160                 (data[index+1] == green) &&
 161                 (data[index+2] == blue))
 162             {
 163                 if (start_x == -1)
 164                 start_x = i;
 165             }
 166             else
 167             {
 168                 if (start_x != -1)
 169                 {
 170                     XDrawLine( xdisplay, (Pixmap) m_bitmap, gc, start_x, j, i-1, j );
 171                     start_x = -1;
 172                 }
 173             }
 174             index += 3;
 175         }
 176         if (start_x != -1)
 177             XDrawLine( xdisplay, (Pixmap) m_bitmap, gc, start_x, j, i, j );
 178     }
 179
 180     XFreeGC( xdisplay, gc );
 181
 182     return TRUE;
 183 #else
 184     return FALSE;
 185 #endif
 186     // wxUSE_NANOX
 187 }
 188
 189 bool wxMask::Create( const wxBitmap& bitmap, int paletteIndex )
 190 {
 191     unsigned char r,g,b;
 192     wxPalette *pal = bitmap.GetPalette();
 193
 194     wxCHECK_MSG( pal, FALSE, wxT("Cannot create mask from bitmap without palette") );
 195
 196     pal->GetRGB(paletteIndex, &r, &g, &b);
 197
 198     return Create(bitmap, wxColour(r, g, b));
 199 }
 200
 201 bool wxMask::Create( const wxBitmap& bitmap )
 202 {
 203 #if !wxUSE_NANOX
 204     if (m_bitmap)
 205     {
 206         XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
 207         m_bitmap = NULL;
 208     }
 209
 210     if (!bitmap.Ok()) return FALSE;
 211
 212     wxCHECK_MSG( bitmap.GetBitmap(), FALSE, wxT("Cannot create mask from colour bitmap") );
 213
 214     m_display = bitmap.GetDisplay();
 215
 216     int xscreen = DefaultScreen( (Display*) m_display );
 217     Window xroot = RootWindow( (Display*) m_display, xscreen );
 218
 219     m_bitmap = (WXPixmap) XCreatePixmap( (Display*) m_display, xroot, bitmap.GetWidth(), bitmap.GetHeight(), 1 );
 220
 221     if (!m_bitmap) return FALSE;
 222
 223     GC gc = XCreateGC( (Display*) m_display, (Pixmap) m_bitmap, 0, NULL );
 224
 225     XCopyPlane( (Display*) m_display, (Pixmap) bitmap.GetBitmap(), (Pixmap) m_bitmap,
 226        gc, 0, 0, bitmap.GetWidth(), bitmap.GetHeight(), 0, 0, 1 );
 227
 228     XFreeGC( (Display*) m_display, gc );
 229
 230     return TRUE;
 231 #else
 232     return FALSE;
 233 #endif
 234     // wxUSE_NANOX
 235 }
 236
 237 //-----------------------------------------------------------------------------
 238 // wxBitmap
 239 //-----------------------------------------------------------------------------
 240
 241 class wxBitmapRefData: public wxObjectRefData
 242 {
 243 public:
 244     wxBitmapRefData();
 245     ~wxBitmapRefData();
 246
 247     WXPixmap        m_pixmap;
 248     WXPixmap        m_bitmap;
 249     WXDisplay      *m_display;
 250     wxMask         *m_mask;
 251     int             m_width;
 252     int             m_height;
 253     int             m_bpp;
 254     wxPalette      *m_palette;
 255 };
 256
 257 wxBitmapRefData::wxBitmapRefData()
 258 {
 259     m_pixmap = NULL;
 260     m_bitmap = NULL;
 261     m_display = NULL;
 262     m_mask = (wxMask *) NULL;
 263     m_width = 0;
 264     m_height = 0;
 265     m_bpp = 0;
 266     m_palette = (wxPalette *) NULL;
 267 }
 268
 269 wxBitmapRefData::~wxBitmapRefData()
 270 {
 271     if (m_pixmap) XFreePixmap( (Display*) m_display, (Pixmap) m_pixmap );
 272     if (m_bitmap) XFreePixmap( (Display*) m_display, (Pixmap) m_bitmap );
 273     if (m_mask) delete m_mask;
 274     if (m_palette) delete m_palette;
 275 }
 276
 277 //-----------------------------------------------------------------------------
 278
 279 #define M_BMPDATA ((wxBitmapRefData *)m_refData)
 280
 281 IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject)
 282
 283 wxBitmap::wxBitmap()
 284 {
 285 }
 286
 287 wxBitmap::wxBitmap( int width, int height, int depth )
 288 {
 289     Create( width, height, depth );
 290 }
 291
 292 bool wxBitmap::Create( int width, int height, int depth )
 293 {
 294     UnRef();
 295
 296     wxCHECK_MSG( (width > 0) && (height > 0), FALSE, wxT("invalid bitmap size") )
 297
 298     m_refData = new wxBitmapRefData();
 299
 300     M_BMPDATA->m_display = wxGlobalDisplay();
 301
 302     wxASSERT_MSG( M_BMPDATA->m_display, wxT("No display") );
 303
 304     int xscreen = DefaultScreen( (Display*) M_BMPDATA->m_display );
 305     Window xroot = RootWindow( (Display*) M_BMPDATA->m_display, xscreen );
 306
 307     int bpp = DefaultDepth( (Display*) M_BMPDATA->m_display, xscreen );
 308     if (depth == -1) depth = bpp;
 309
 310     wxCHECK_MSG( (depth == bpp) ||
 311                  (depth == 1), FALSE, wxT("invalid bitmap depth") )
 312
 313     M_BMPDATA->m_mask = (wxMask *) NULL;
 314     M_BMPDATA->m_width = width;
 315     M_BMPDATA->m_height = height;
 316
 317 #if wxUSE_NANOX
 318     M_BMPDATA->m_pixmap = (WXPixmap) GrNewPixmap(width, height, NULL);
 319     M_BMPDATA->m_bpp = bpp;
 320
 321     wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("Bitmap creation failed") );
 322 #else
 323     if (depth == 1)
 324     {
 325         M_BMPDATA->m_bitmap = (WXPixmap) XCreatePixmap( (Display*) M_BMPDATA->m_display, xroot, width, height, 1 );
 326
 327         wxASSERT_MSG( M_BMPDATA->m_bitmap, wxT("Bitmap creation failed") );
 328
 329         M_BMPDATA->m_bpp = 1;
 330     }
 331     else
 332     {
 333         M_BMPDATA->m_pixmap = (WXPixmap) XCreatePixmap( (Display*) M_BMPDATA->m_display, xroot, width, height, depth );
 334
 335         wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("Pixmap creation failed") );
 336
 337         M_BMPDATA->m_bpp = depth;
 338     }
 339 #endif
 340     return Ok();
 341 }
 342
 343 bool wxBitmap::CreateFromXpm( const char **bits )
 344 {
 345 #if wxUSE_XPM
 346 #if wxHAVE_LIB_XPM
 347     UnRef();
 348
 349     wxCHECK_MSG( bits != NULL, FALSE, wxT("invalid bitmap data") )
 350
 351     m_refData = new wxBitmapRefData();
 352
 353     M_BMPDATA->m_display = wxGlobalDisplay();
 354
 355     Display *xdisplay = (Display*) M_BMPDATA->m_display;
 356
 357     int xscreen = DefaultScreen( xdisplay );
 358     Window xroot = RootWindow( xdisplay, xscreen );
 359
 360     int bpp = DefaultDepth( xdisplay, xscreen );
 361
 362     XpmAttributes xpmAttr;
 363     xpmAttr.valuemask = XpmReturnInfos;    // nothing yet, but get infos back
 364
 365     Pixmap pixmap;
 366     Pixmap mask = 0;
 367
 368     int ErrorStatus = XpmCreatePixmapFromData( xdisplay, xroot, (char**) bits, &pixmap, &mask, &xpmAttr );
 369
 370     if (ErrorStatus == XpmSuccess)
 371     {
 372         M_BMPDATA->m_width = xpmAttr.width;
 373         M_BMPDATA->m_height = xpmAttr.height;
 374
 375         M_BMPDATA->m_bpp = bpp;  // mono as well?
 376
 377 #if __WXDEBUG__
 378         unsigned int depthRet;
 379         int xRet, yRet;
 380         unsigned int widthRet, heightRet, borderWidthRet;
 381         XGetGeometry( xdisplay, pixmap, &xroot, &xRet, &yRet,
 382             &widthRet, &heightRet, &borderWidthRet, &depthRet);
 383
 384         wxASSERT_MSG( bpp == (int)depthRet, wxT("colour depth mismatch") )
 385 #endif
 386
 387         XpmFreeAttributes(&xpmAttr);
 388
 389         M_BMPDATA->m_pixmap = (WXPixmap) pixmap;
 390
 391         if (mask)
 392         {
 393             M_BMPDATA->m_mask = new wxMask;
 394             M_BMPDATA->m_mask->SetBitmap( (WXPixmap) mask );
 395             M_BMPDATA->m_mask->SetDisplay( xdisplay );
 396         }
 397         return TRUE;
 398     }
 399     else
 400     {
 401         UnRef();
 402
 403         return FALSE;
 404     }
 405 #else
 406     wxXPMDecoder decoder;
 407     wxImage image(decoder.ReadData(bits));
 408     if (image.Ok())
 409         return CreateFromImage(image);
 410     else
 411         return FALSE;
 412 #endif
 413 #endif
 414     return FALSE;
 415 }
 416
 417 bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
 418 {
 419 #if wxUSE_NANOX
 420     if (!image.Ok())
 421     {
 422         wxASSERT_MSG(image.Ok(), "Invalid wxImage passed to wxBitmap::CreateFromImage.");
 423         return FALSE;
 424     }
 425
 426     int w = image.GetWidth();
 427     int h = image.GetHeight();
 428
 429     if (!Create(w, h, depth))
 430         return FALSE;
 431
 432     // Unfortunately the mask has to be screen-depth since
 433     // 1-bpp bitmaps don't seem to be supported
 434     // TODO: implement transparent drawing, presumably
 435     // by doing several blits as per the Windows
 436     // implementation because Nano-X doesn't support
 437     // XSetClipMask.
 438     // TODO: could perhaps speed this function up
 439     // by making a buffer of pixel values,
 440     // and then calling GrArea to write that to the
 441     // pixmap. See demos/nxroach.c.
 442
 443     bool hasMask = image.HasMask();
 444
 445     GC pixmapGC = GrNewGC();
 446     Pixmap pixmap = (Pixmap) GetPixmap();
 447
 448     GC maskGC = 0;
 449     Pixmap maskPixmap = 0;
 450
 451     unsigned char maskR = 0;
 452     unsigned char maskG = 0;
 453     unsigned char maskB = 0;
 454
 455     if (hasMask)
 456     {
 457         maskR = image.GetMaskRed();
 458         maskG = image.GetMaskGreen();
 459         maskB = image.GetMaskBlue();
 460
 461         maskGC = GrNewGC();
 462         maskPixmap = GrNewPixmap(w, h, 0);
 463         if (!maskPixmap)
 464             hasMask = FALSE;
 465         else
 466         {
 467             wxMask* mask = new wxMask;
 468             mask->SetBitmap((WXPixmap) maskPixmap);
 469             SetMask(mask);
 470         }
 471     }
 472
 473     GR_COLOR lastPixmapColour = 0;
 474     GR_COLOR lastMaskColour = 0;
 475
 476     int i, j;
 477     for (i = 0; i < w; i++)
 478     {
 479         for (j = 0; j < h; j++)
 480         {
 481             unsigned char red = image.GetRed(i, j);
 482             unsigned char green = image.GetGreen(i, j);
 483             unsigned char blue = image.GetBlue(i, j);
 484
 485             GR_COLOR colour = GR_RGB(red, green, blue);
 486
 487             // Efficiency measure
 488             if (colour != lastPixmapColour || (i == 0 && j == 0))
 489             {
 490                 GrSetGCForeground(pixmapGC, colour);
 491                 lastPixmapColour = colour;
 492             }
 493
 494             GrPoint(pixmap, pixmapGC, i, j);
 495
 496             if (hasMask)
 497             {
 498                 // scan the bitmap for the transparent colour and set the corresponding
 499                 // pixels in the mask to BLACK and the rest to WHITE
 500                 if (maskR == red && maskG == green && maskB == blue)
 501                 {
 502                     colour = GR_RGB(0, 0, 0);
 503                 }
 504                 else
 505                 {
 506                     colour = GR_RGB(255, 255, 255);
 507                 }
 508                 if (colour != lastMaskColour || (i == 0 && j == 0))
 509                 {
 510                     GrSetGCForeground(maskGC, colour);
 511                     lastMaskColour = colour;
 512                 }
 513                 GrPoint(maskPixmap, maskGC, i, j);
 514             }
 515         }
 516     }
 517
 518     GrDestroyGC(pixmapGC);
 519     if (hasMask)
 520         GrDestroyGC(maskGC);
 521
 522     return TRUE;
 523 #else
 524     // !wxUSE_NANOX
 525
 526     UnRef();
 527
 528     wxCHECK_MSG( image.Ok(), FALSE, wxT("invalid image") )
 529     wxCHECK_MSG( depth == -1, FALSE, wxT("invalid bitmap depth") )
 530
 531     m_refData = new wxBitmapRefData();
 532
 533     M_BMPDATA->m_display = wxGlobalDisplay();
 534
 535     Display *xdisplay = (Display*) M_BMPDATA->m_display;
 536
 537     int xscreen = DefaultScreen( xdisplay );
 538     Window xroot = RootWindow( xdisplay, xscreen );
 539     Visual* xvisual = DefaultVisual( xdisplay, xscreen );
 540
 541     int bpp = DefaultDepth( xdisplay, xscreen );
 542
 543     int width = image.GetWidth();
 544     int height = image.GetHeight();
 545     M_BMPDATA->m_width = width;
 546     M_BMPDATA->m_height = height;
 547
 548     if (depth != 1) depth = bpp;
 549     M_BMPDATA->m_bpp = depth;
 550
 551     if (depth == 1)
 552     {
 553         wxFAIL_MSG( "mono images later" );
 554     }
 555     else
 556     {
 557         // Create image
 558
 559         XImage *data_image = XCreateImage( xdisplay, xvisual, bpp, ZPixmap, 0, 0, width, height, 32, 0 );
 560         data_image->data = (char*) malloc( data_image->bytes_per_line * data_image->height );
 561
 562         if (data_image->data == NULL)
 563         {
 564             wxLogError( wxT("Out of memory.") );  // TODO clean
 565             return FALSE;
 566         }
 567
 568         M_BMPDATA->m_pixmap = (WXPixmap) XCreatePixmap( xdisplay, xroot, width, height, depth );
 569
 570         // Create mask
 571
 572         XImage *mask_image = (XImage*) NULL;
 573         if (image.HasMask())
 574         {
 575             mask_image = XCreateImage( xdisplay, xvisual, 1, ZPixmap, 0, 0, width, height, 32, 0 );
 576             mask_image->data = (char*) malloc( mask_image->bytes_per_line * mask_image->height );
 577
 578             if (mask_image->data == NULL)
 579             {
 580                 wxLogError( wxT("Out of memory.") ); // TODO clean
 581                 return FALSE;
 582             }
 583
 584             wxMask *mask = new wxMask();
 585             mask->SetDisplay( xdisplay );
 586             mask->SetBitmap( (WXPixmap) XCreatePixmap( xdisplay, xroot, width, height, 1 ) );
 587
 588             SetMask( mask );
 589         }
 590
 591         // Retrieve info
 592
 593         XVisualInfo vinfo_template;
 594         XVisualInfo *vi;
 595
 596         vinfo_template.visual = xvisual;
 597         vinfo_template.visualid = XVisualIDFromVisual( xvisual );
 598         vinfo_template.depth = bpp;
 599         int nitem = 0;
 600
 601         vi = XGetVisualInfo( xdisplay, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
 602         wxASSERT_MSG( vi, wxT("No visual info") );
 603
 604         if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15;
 605         if (bpp < 8) bpp = 8;
 606
 607         // Render
 608
 609         enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR };
 610         byte_order b_o = RGB;
 611
 612         if (bpp > 8)
 613         {
 614             if ((vi->red_mask > vi->green_mask) && (vi->green_mask > vi->blue_mask))      b_o = RGB;
 615             else if ((vi->red_mask > vi->blue_mask) && (vi->blue_mask > vi->green_mask))  b_o = RBG;
 616             else if ((vi->blue_mask > vi->red_mask) && (vi->red_mask > vi->green_mask))   b_o = BRG;
 617             else if ((vi->blue_mask > vi->green_mask) && (vi->green_mask > vi->red_mask)) b_o = BGR;
 618             else if ((vi->green_mask > vi->red_mask) && (vi->red_mask > vi->blue_mask))   b_o = GRB;
 619             else if ((vi->green_mask > vi->blue_mask) && (vi->blue_mask > vi->red_mask))  b_o = GBR;
 620         }
 621
 622         XFree( vi );
 623
 624         int r_mask = image.GetMaskRed();
 625         int g_mask = image.GetMaskGreen();
 626         int b_mask = image.GetMaskBlue();
 627
 628         unsigned char* data = image.GetData();
 629         wxASSERT_MSG( data, "No image data" );
 630
 631         bool hasMask = image.HasMask();
 632
 633         int index = 0;
 634         for (int y = 0; y < height; y++)
 635         {
 636             for (int x = 0; x < width; x++)
 637             {
 638                 int r = data[index];
 639                 index++;
 640                 int g = data[index];
 641                 index++;
 642                 int b = data[index];
 643                 index++;
 644
 645                 if (hasMask)
 646                 {
 647                     if ((r == r_mask) && (b == b_mask) && (g == g_mask))
 648                         XPutPixel( mask_image, x, y, 0 );
 649                     else
 650                         XPutPixel( mask_image, x, y, 1 );
 651                 }
 652
 653                 switch (bpp)
 654                 {
 655                     case 8:
 656                     {
 657                         int pixel = 0;
 658 #if 0
 659                         if (wxTheApp->m_colorCube)
 660                         {
 661                             pixel = wxTheApp->m_colorCube[ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ];
 662                         }
 663                         else
 664                         {
 665                             GdkColormap *cmap = gtk_widget_get_default_colormap();
 666                             GdkColor *colors = cmap->colors;
 667                             int max = 3 * (65536);
 668
 669                             for (int i = 0; i < cmap->size; i++)
 670                             {
 671                                 int rdiff = (r << 8) - colors[i].red;
 672                                 int gdiff = (g << 8) - colors[i].green;
 673                                 int bdiff = (b << 8) - colors[i].blue;
 674                                 int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
 675                                 if (sum < max) { pixel = i; max = sum; }
 676                             }
 677                         }
 678 #endif
 679                         XPutPixel( data_image, x, y, pixel );
 680                         break;
 681                     }
 682                     case 12:  // SGI only
 683                     {
 684                         int pixel = 0;
 685                         switch (b_o)
 686                         {
 687                             case RGB: pixel = ((r & 0xf0) << 4) | (g & 0xf0) | ((b & 0xf0) >> 4); break;
 688                             case RBG: pixel = ((r & 0xf0) << 4) | (b & 0xf0) | ((g & 0xf0) >> 4); break;
 689                             case GRB: pixel = ((g & 0xf0) << 4) | (r & 0xf0) | ((b & 0xf0) >> 4); break;
 690                             case GBR: pixel = ((g & 0xf0) << 4) | (b & 0xf0) | ((r & 0xf0) >> 4); break;
 691                             case BRG: pixel = ((b & 0xf0) << 4) | (r & 0xf0) | ((g & 0xf0) >> 4); break;
 692                             case BGR: pixel = ((b & 0xf0) << 4) | (g & 0xf0) | ((r & 0xf0) >> 4); break;
 693                         }
 694                         XPutPixel( data_image, x, y, pixel );
 695                         break;
 696                     }
 697                     case 15:
 698                     {
 699                         int pixel = 0;
 700                         switch (b_o)
 701                         {
 702                             case RGB: pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
 703                             case RBG: pixel = ((r & 0xf8) << 7) | ((b & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
 704                             case GRB: pixel = ((g & 0xf8) << 7) | ((r & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
 705                             case GBR: pixel = ((g & 0xf8) << 7) | ((b & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
 706                             case BRG: pixel = ((b & 0xf8) << 7) | ((r & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
 707                             case BGR: pixel = ((b & 0xf8) << 7) | ((g & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
 708                         }
 709                         XPutPixel( data_image, x, y, pixel );
 710                         break;
 711                     }
 712                     case 16:
 713                     {
 714                         // I actually don't know if for 16-bit displays, it is alway the green
 715                         // component or the second component which has 6 bits.
 716                         int pixel = 0;
 717                         switch (b_o)
 718                         {
 719                             case RGB: pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
 720                             case RBG: pixel = ((r & 0xf8) << 8) | ((b & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
 721                             case GRB: pixel = ((g & 0xf8) << 8) | ((r & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
 722                             case GBR: pixel = ((g & 0xf8) << 8) | ((b & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
 723                             case BRG: pixel = ((b & 0xf8) << 8) | ((r & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
 724                             case BGR: pixel = ((b & 0xf8) << 8) | ((g & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
 725                         }
 726                         XPutPixel( data_image, x, y, pixel );
 727                         break;
 728                     }
 729                     case 32:
 730                     case 24:
 731                     {
 732                         int pixel = 0;
 733                         switch (b_o)
 734                         {
 735                             case RGB: pixel = (r << 16) | (g << 8) | b; break;
 736                             case RBG: pixel = (r << 16) | (b << 8) | g; break;
 737                             case BRG: pixel = (b << 16) | (r << 8) | g; break;
 738                             case BGR: pixel = (b << 16) | (g << 8) | r; break;
 739                             case GRB: pixel = (g << 16) | (r << 8) | b; break;
 740                             case GBR: pixel = (g << 16) | (b << 8) | r; break;
 741                         }
 742                         XPutPixel( data_image, x, y, pixel );
 743                     }
 744                     default: break;
 745                 }
 746             } // for
 747         }  // for
 748
 749         // Blit picture
 750
 751         GC gc = XCreateGC( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, 0, NULL );
 752         XPutImage( xdisplay, (Pixmap) M_BMPDATA->m_pixmap, gc, data_image, 0, 0, 0, 0, width, height );
 753 #ifdef __WXDEBUG__
 754         XSync(wxGlobalDisplay(), False);
 755 #endif
 756
 757         XDestroyImage( data_image );
 758         XFreeGC( xdisplay, gc );
 759
 760         // Blit mask
 761
 762         if (image.HasMask())
 763         {
 764             GC gc = XCreateGC( xdisplay, (Pixmap) GetMask()->GetBitmap(), 0, NULL );
 765             XPutImage( xdisplay, (Pixmap) GetMask()->GetBitmap(), gc, mask_image, 0, 0, 0, 0, width, height );
 766
 767             XDestroyImage( mask_image );
 768             XFreeGC( xdisplay, gc );
 769         }
 770     }
 771
 772     return TRUE;
 773 #endif
 774     // wxUSE_NANOX
 775 }
 776
 777 static void wxCalcPrecAndShift( unsigned long mask, int *shift, int *prec )
 778 {
 779   *shift = 0;
 780   *prec = 0;
 781
 782   while (!(mask & 0x1))
 783     {
 784       (*shift)++;
 785       mask >>= 1;
 786     }
 787
 788   while (mask & 0x1)
 789     {
 790       (*prec)++;
 791       mask >>= 1;
 792     }
 793 }
 794
 795 wxImage wxBitmap::ConvertToImage() const
 796 {
 797     wxImage image;
 798
 799     wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
 800
 801     Display *xdisplay = (Display*) M_BMPDATA->m_display;
 802     wxASSERT_MSG( xdisplay, wxT("No display") );
 803
 804     int xscreen = DefaultScreen( xdisplay );
 805     Visual* xvisual = DefaultVisual( xdisplay, xscreen );
 806
 807     int bpp = DefaultDepth( xdisplay, xscreen );
 808
 809 #if wxUSE_NANOX
 810     wxGetImageFromDrawable((Pixmap) GetPixmap(), 0, 0, GetWidth(), GetHeight(), image);
 811     return image;
 812 #else
 813     // !wxUSE_NANOX
 814     XImage *x_image = NULL;
 815     if (GetPixmap())
 816     {
 817         x_image = XGetImage( xdisplay, (Pixmap) GetPixmap(),
 818             0, 0,
 819             GetWidth(), GetHeight(),
 820             AllPlanes, ZPixmap );
 821     } else
 822     if (GetBitmap())
 823     {
 824         x_image = XGetImage( xdisplay, (Pixmap) GetBitmap(),
 825             0, 0,
 826             GetWidth(), GetHeight(),
 827             AllPlanes, ZPixmap );
 828     } else
 829     {
 830         wxFAIL_MSG( wxT("Ill-formed bitmap") );
 831     }
 832
 833     wxCHECK_MSG( x_image, wxNullImage, wxT("couldn't create image") );
 834
 835     image.Create( GetWidth(), GetHeight() );
 836     char unsigned *data = image.GetData();
 837
 838     if (!data)
 839     {
 840         XDestroyImage( x_image );
 841         wxFAIL_MSG( wxT("couldn't create image") );
 842         return wxNullImage;
 843     }
 844
 845     XImage *x_image_mask = NULL;
 846     if (GetMask())
 847     {
 848         x_image_mask = XGetImage( xdisplay, (Pixmap) GetMask()->GetBitmap(),
 849             0, 0,
 850             GetWidth(), GetHeight(),
 851             AllPlanes, ZPixmap );
 852
 853         image.SetMaskColour( 16, 16, 16 );  // anything unlikely and dividable
 854     }
 855
 856     int red_shift_right = 0;
 857     int green_shift_right = 0;
 858     int blue_shift_right = 0;
 859     int red_shift_left = 0;
 860     int green_shift_left = 0;
 861     int blue_shift_left = 0;
 862     bool use_shift = FALSE;
 863
 864     if (GetPixmap())
 865     {
 866         // Retrieve info
 867
 868         XVisualInfo vinfo_template;
 869         XVisualInfo *vi;
 870
 871         vinfo_template.visual = xvisual;
 872         vinfo_template.visualid = XVisualIDFromVisual( xvisual );
 873         vinfo_template.depth = bpp;
 874         int nitem = 0;
 875
 876         vi = XGetVisualInfo( xdisplay, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem );
 877         wxASSERT_MSG( vi, wxT("No visual info") );
 878
 879         int red_prec,green_prec,blue_prec;
 880         int red_shift,green_shift,blue_shift;
 881         wxCalcPrecAndShift( vi->red_mask, &red_shift, &red_prec );
 882         wxCalcPrecAndShift( vi->green_mask, &green_shift, &green_prec );
 883         wxCalcPrecAndShift( vi->blue_mask, &blue_shift, &blue_prec );
 884         if (bpp == 16) bpp = red_prec + green_prec + blue_prec;
 885
 886         red_shift_right = red_shift;
 887         red_shift_left = 8-red_prec;
 888         green_shift_right = green_shift;
 889         green_shift_left = 8-green_prec;
 890         blue_shift_right = blue_shift;
 891         blue_shift_left = 8-blue_prec;
 892
 893 #if 0
 894         use_shift = (vi->visual->c_class == TrueColor) || (vi->visual->c_class == DirectColor);
 895 #else
 896         use_shift = TRUE;
 897 #endif
 898
 899         XFree( vi );
 900     }
 901     if (GetBitmap())
 902     {
 903         bpp = 1;
 904     }
 905
 906
 907 //    GdkColormap *cmap = gtk_widget_get_default_colormap();
 908
 909     long pos = 0;
 910     for (int j = 0; j < GetHeight(); j++)
 911     {
 912         for (int i = 0; i < GetWidth(); i++)
 913         {
 914             unsigned long pixel = XGetPixel( x_image, i, j );
 915             if (bpp == 1)
 916             {
 917                 if (pixel == 0)
 918                 {
 919                     data[pos]   = 0;
 920                     data[pos+1] = 0;
 921                     data[pos+2] = 0;
 922                 }
 923                 else
 924                 {
 925                     data[pos]   = 255;
 926                     data[pos+1] = 255;
 927                     data[pos+2] = 255;
 928                 }
 929             }
 930             else if (use_shift)
 931             {
 932                 data[pos] =   (pixel >> red_shift_right)   << red_shift_left;
 933                 data[pos+1] = (pixel >> green_shift_right) << green_shift_left;
 934                 data[pos+2] = (pixel >> blue_shift_right)  << blue_shift_left;
 935             }
 936 #if 0
 937             else if (cmap->colors)
 938             {
 939                 data[pos] =   cmap->colors[pixel].red   >> 8;
 940                 data[pos+1] = cmap->colors[pixel].green >> 8;
 941                 data[pos+2] = cmap->colors[pixel].blue  >> 8;
 942             }
 943 #endif
 944             else
 945             {
 946                 wxFAIL_MSG( wxT("Image conversion failed. Unknown visual type.") );
 947             }
 948
 949             if (x_image_mask)
 950             {
 951                 int mask_pixel = XGetPixel( x_image_mask, i, j );
 952                 if (mask_pixel == 0)
 953                 {
 954                     data[pos] = 16;
 955                     data[pos+1] = 16;
 956                     data[pos+2] = 16;
 957                 }
 958             }
 959
 960             pos += 3;
 961         }
 962     }
 963
 964     XDestroyImage( x_image );
 965     if (x_image_mask) XDestroyImage( x_image_mask );
 966     return image;
 967 #endif
 968     // wxUSE_NANOX
 969 }
 970
 971 wxBitmap::wxBitmap( const wxBitmap& bmp )
 972 {
 973     Ref( bmp );
 974 }
 975
 976 wxBitmap::wxBitmap( const wxString &filename, int type )
 977 {
 978     LoadFile( filename, type );
 979 }
 980
 981 wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth) )
 982 {
 983 #if !wxUSE_NANOX
 984     m_refData = new wxBitmapRefData();
 985
 986     M_BMPDATA->m_display = wxGlobalDisplay();
 987
 988     Display *xdisplay = (Display*) M_BMPDATA->m_display;
 989
 990     int xscreen = DefaultScreen( xdisplay );
 991     Window xroot = RootWindow( xdisplay, xscreen );
 992
 993     M_BMPDATA->m_mask = (wxMask *) NULL;
 994     M_BMPDATA->m_bitmap = (WXPixmap) XCreateBitmapFromData( xdisplay, xroot, (char *) bits, width, height );
 995     M_BMPDATA->m_width = width;
 996     M_BMPDATA->m_height = height;
 997     M_BMPDATA->m_bpp = 1;
 998 #endif
 999     wxCHECK_RET( M_BMPDATA->m_bitmap, wxT("couldn't create bitmap") );
1000 }
1001
1002 wxBitmap::~wxBitmap()
1003 {
1004 }
1005
1006 wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp )
1007 {
1008     if ( m_refData != bmp.m_refData )
1009         Ref( bmp );
1010
1011     return *this;
1012 }
1013
1014 bool wxBitmap::operator == ( const wxBitmap& bmp ) const
1015 {
1016     return m_refData == bmp.m_refData;
1017 }
1018
1019 bool wxBitmap::operator != ( const wxBitmap& bmp ) const
1020 {
1021     return m_refData != bmp.m_refData;
1022 }
1023
1024 bool wxBitmap::Ok() const
1025 {
1026     return (m_refData != NULL);
1027 }
1028
1029 int wxBitmap::GetHeight() const
1030 {
1031     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
1032
1033     return M_BMPDATA->m_height;
1034 }
1035
1036 int wxBitmap::GetWidth() const
1037 {
1038     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
1039
1040     return M_BMPDATA->m_width;
1041 }
1042
1043 int wxBitmap::GetDepth() const
1044 {
1045     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
1046
1047     return M_BMPDATA->m_bpp;
1048 }
1049
1050 wxMask *wxBitmap::GetMask() const
1051 {
1052     wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
1053
1054     return M_BMPDATA->m_mask;
1055 }
1056
1057 void wxBitmap::SetMask( wxMask *mask )
1058 {
1059     wxCHECK_RET( Ok(), wxT("invalid bitmap") );
1060
1061     if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
1062
1063     M_BMPDATA->m_mask = mask;
1064 }
1065
1066 bool wxBitmap::CopyFromIcon(const wxIcon& icon)
1067 {
1068     *this = icon;
1069     return TRUE;
1070 }
1071
1072 wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
1073 {
1074     wxCHECK_MSG( Ok() &&
1075                  (rect.x >= 0) && (rect.y >= 0) &&
1076                  (rect.x+rect.width <= M_BMPDATA->m_width) && (rect.y+rect.height <= M_BMPDATA->m_height),
1077                  wxNullBitmap, wxT("invalid bitmap or bitmap region") );
1078
1079     wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp );
1080     wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
1081
1082
1083     wxFAIL_MSG( "wxBitmap::GetSubBitmap not yet implemented" );
1084
1085 #if 0
1086     if (ret.GetPixmap())
1087     {
1088         GdkGC *gc = gdk_gc_new( ret.GetPixmap() );
1089         gdk_draw_pixmap( ret.GetPixmap(), gc, GetPixmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
1090         gdk_gc_destroy( gc );
1091     }
1092     else
1093     {
1094         GdkGC *gc = gdk_gc_new( ret.GetBitmap() );
1095         gdk_wx_draw_bitmap( ret.GetBitmap(), gc, GetBitmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
1096         gdk_gc_destroy( gc );
1097     }
1098
1099     if (GetMask())
1100     {
1101         wxMask *mask = new wxMask;
1102         mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, rect.width, rect.height, 1 );
1103
1104         GdkGC *gc = gdk_gc_new( mask->m_bitmap );
1105         gdk_wx_draw_bitmap( mask->m_bitmap, gc, M_BMPDATA->m_mask->m_bitmap, 0, 0, rect.x, rect.y, rect.width, rect.height );
1106         gdk_gc_destroy( gc );
1107
1108         ret.SetMask( mask );
1109     }
1110 #endif
1111
1112     return ret;
1113 }
1114
1115 bool wxBitmap::SaveFile( const wxString &name, int type, wxPalette *WXUNUSED(palette) )
1116 {
1117     wxCHECK_MSG( Ok(), FALSE, wxT("invalid bitmap") );
1118
1119     // Try to save the bitmap via wxImage handlers:
1120     {
1121         wxImage image( *this );
1122         if (image.Ok()) return image.SaveFile( name, type );
1123     }
1124
1125     return FALSE;
1126 }
1127
1128 bool wxBitmap::LoadFile( const wxString &name, int type )
1129 {
1130     UnRef();
1131
1132     if (!wxFileExists(name)) return FALSE;
1133
1134
1135     if (type == wxBITMAP_TYPE_XPM)
1136     {
1137 #if wxUSE_XPM
1138 #if wxHAVE_LIB_XPM
1139         m_refData = new wxBitmapRefData();
1140
1141         M_BMPDATA->m_display = wxGlobalDisplay();
1142
1143         Display *xdisplay = (Display*) M_BMPDATA->m_display;
1144
1145         int xscreen = DefaultScreen( xdisplay );
1146         Window xroot = RootWindow( xdisplay, xscreen );
1147
1148         int bpp = DefaultDepth( xdisplay, xscreen );
1149
1150         XpmAttributes xpmAttr;
1151         xpmAttr.valuemask = XpmReturnInfos;    // nothing yet, but get infos back
1152
1153         Pixmap pixmap;
1154         Pixmap mask = 0;
1155
1156         int ErrorStatus = XpmReadFileToPixmap( xdisplay, xroot, (char*) name.c_str(), &pixmap, &mask, &xpmAttr);
1157
1158         if (ErrorStatus == XpmSuccess)
1159         {
1160             M_BMPDATA->m_width = xpmAttr.width;
1161             M_BMPDATA->m_height = xpmAttr.height;
1162
1163             M_BMPDATA->m_bpp = bpp;  // mono as well?
1164
1165             XpmFreeAttributes(&xpmAttr);
1166
1167             M_BMPDATA->m_bitmap = (WXPixmap) pixmap;
1168
1169             if (mask)
1170             {
1171                 M_BMPDATA->m_mask = new wxMask;
1172                 M_BMPDATA->m_mask->SetBitmap( (WXPixmap) mask );
1173                 M_BMPDATA->m_mask->SetDisplay( xdisplay );
1174             }
1175         }
1176         else
1177         {
1178             UnRef();
1179
1180             return FALSE;
1181         }
1182 #else
1183 #if wxUSE_STREAMS
1184         wxXPMDecoder decoder;
1185         wxFileInputStream stream(name);
1186         if (stream.Ok())
1187         {
1188             wxImage image(decoder.ReadFile(stream));
1189             if (image.Ok())
1190                 return CreateFromImage(image);
1191             else
1192                 return FALSE;
1193         }
1194         else
1195             return FALSE;
1196 #else
1197         return FALSE;
1198 #endif
1199         // wxUSE_STREAMS
1200 #endif
1201         // wxHAVE_LIB_XPM
1202 #endif
1203         // wxUSE_XPM
1204         return FALSE;
1205     }
1206     else // try if wxImage can load it
1207     {
1208         wxImage image;
1209         if (!image.LoadFile( name, type )) return FALSE;
1210         if (image.Ok()) *this = image.ConvertToBitmap();
1211         else return FALSE;
1212     }
1213
1214     return TRUE;
1215 }
1216
1217 wxPalette *wxBitmap::GetPalette() const
1218 {
1219     if (!Ok()) return (wxPalette *) NULL;
1220
1221     return M_BMPDATA->m_palette;
1222 }
1223
1224 void wxBitmap::SetHeight( int height )
1225 {
1226     if (!m_refData) m_refData = new wxBitmapRefData();
1227
1228     M_BMPDATA->m_height = height;
1229 }
1230
1231 void wxBitmap::SetWidth( int width )
1232 {
1233     if (!m_refData) m_refData = new wxBitmapRefData();
1234
1235     M_BMPDATA->m_width = width;
1236 }
1237
1238 void wxBitmap::SetDepth( int depth )
1239 {
1240     if (!m_refData) m_refData = new wxBitmapRefData();
1241
1242     M_BMPDATA->m_bpp = depth;
1243 }
1244
1245 void wxBitmap::SetPixmap( WXPixmap pixmap )
1246 {
1247     if (!m_refData) m_refData = new wxBitmapRefData();
1248
1249     M_BMPDATA->m_pixmap = pixmap;
1250 }
1251
1252 void wxBitmap::SetBitmap( WXPixmap bitmap )
1253 {
1254     if (!m_refData) m_refData = new wxBitmapRefData();
1255
1256     M_BMPDATA->m_bitmap = bitmap;
1257 }
1258
1259 WXPixmap wxBitmap::GetPixmap() const
1260 {
1261     wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1262
1263     return M_BMPDATA->m_pixmap;
1264 }
1265
1266 WXPixmap wxBitmap::GetBitmap() const
1267 {
1268     wxCHECK_MSG( Ok(), (WXPixmap) NULL, wxT("invalid bitmap") );
1269
1270     return M_BMPDATA->m_bitmap;
1271 }
1272
1273 WXDisplay *wxBitmap::GetDisplay() const
1274 {
1275     wxCHECK_MSG( Ok(), (WXDisplay*) NULL, wxT("invalid bitmap") );
1276
1277     return M_BMPDATA->m_display;
1278 }
1279
1280 #if wxUSE_NANOX
1281 // Copy from the drawable to the wxImage
1282 bool wxGetImageFromDrawable(GR_DRAW_ID drawable, int srcX, int srcY, int width, int height, wxImage& image)
1283 {
1284     GR_SCREEN_INFO sinfo;
1285     int x, y;
1286     GR_PIXELVAL *pixels;
1287     GR_PALETTE* palette = NULL;
1288     unsigned char rgb[3], *pp;
1289
1290     GrGetScreenInfo(&sinfo);
1291
1292     if (sinfo.pixtype == MWPF_PALETTE) {
1293                 if(!(palette = (GR_PALETTE*) malloc(sizeof(GR_PALETTE)))) {
1294                         return FALSE;
1295                 }
1296                 GrGetSystemPalette(palette);
1297         }
1298
1299     if(!(pixels = (GR_PIXELVAL*) malloc(sizeof(GR_PIXELVAL) * width * height)))
1300     {
1301         return FALSE;
1302     }
1303
1304     image.Create(width, height);
1305
1306         GrReadArea(drawable, srcX, srcY, width, height,
1307                                                 pixels);
1308
1309
1310                 for(x = 0; x < sinfo.cols; x++) {
1311
1312                         pp = (unsigned char *)pixels +
1313                                 ((x + (y * sinfo.cols)) *
1314                                 sizeof(GR_PIXELVAL));
1315
1316                         switch(sinfo.pixtype) {
1317                         /* FIXME: These may need modifying on big endian. */
1318                                 case MWPF_TRUECOLOR0888:
1319                                 case MWPF_TRUECOLOR888:
1320                                         rgb[0] = pp[2];
1321                                         rgb[1] = pp[1];
1322                                         rgb[2] = pp[0];
1323                                         break;
1324                                 case MWPF_PALETTE:
1325                                         rgb[0] = palette->palette[pp[0]].r;
1326                                         rgb[1] = palette->palette[pp[0]].g;
1327                                         rgb[2] = palette->palette[pp[0]].b;
1328                                         break;
1329                                 case MWPF_TRUECOLOR565:
1330                                         rgb[0] = pp[1] & 0xf8;
1331                                         rgb[1] = ((pp[1] & 0x07) << 5) |
1332                                                 ((pp[0] & 0xe0) >> 3);
1333                                         rgb[2] = (pp[0] & 0x1f) << 3;
1334                                         break;
1335                                 case MWPF_TRUECOLOR555:
1336                                         rgb[0] = (pp[1] & 0x7c) << 1;
1337                                         rgb[1] = ((pp[1] & 0x03) << 6) |
1338                                                 ((pp[0] & 0xe0) >> 2);
1339                                         rgb[2] = (pp[0] & 0x1f) << 3;
1340                                         break;
1341                                 case MWPF_TRUECOLOR332:
1342                                         rgb[0] = pp[0] & 0xe0;
1343                                         rgb[1] = (pp[0] & 0x1c) << 3;
1344                                         rgb[2] = (pp[0] & 0x03) << 6;
1345                                         break;
1346                                 default:
1347                                         fprintf(stderr, "Unsupported pixel "
1348                                                         "format\n");
1349                                         return 1;
1350                         }
1351
1352             image.SetRGB(x, y, rgb[0], rgb[1], rgb[2]);
1353
1354         }
1355
1356     free(pixels);
1357     if(palette) free(palette);
1358
1359     return TRUE;
1360 }
1361
1362 #if 0
1363 int GrGetPixelColor(GR_SCREEN_INFO* sinfo, GR_PALETTE* palette, GR_PIXELVAL pixel,
1364     unsigned char* red, unsigned char* green, unsigned char* blue)
1365 {
1366         unsigned char rgb[3], *pp;
1367
1368     pp = (unsigned char*) & pixel ;
1369
1370     switch (sinfo.pixtype)
1371     {
1372                         /* FIXME: These may need modifying on big endian. */
1373                                 case MWPF_TRUECOLOR0888:
1374                                 case MWPF_TRUECOLOR888:
1375                                         rgb[0] = pp[2];
1376                                         rgb[1] = pp[1];
1377                                         rgb[2] = pp[0];
1378                                         break;
1379                                 case MWPF_PALETTE:
1380                                         rgb[0] = palette->palette[pp[0]].r;
1381                                         rgb[1] = palette->palette[pp[0]].g;
1382                                         rgb[2] = palette->palette[pp[0]].b;
1383                                         break;
1384                                 case MWPF_TRUECOLOR565:
1385                                         rgb[0] = pp[1] & 0xf8;
1386                                         rgb[1] = ((pp[1] & 0x07) << 5) |
1387                                                 ((pp[0] & 0xe0) >> 3);
1388                                         rgb[2] = (pp[0] & 0x1f) << 3;
1389                                         break;
1390                                 case MWPF_TRUECOLOR555:
1391                                         rgb[0] = (pp[1] & 0x7c) << 1;
1392                                         rgb[1] = ((pp[1] & 0x03) << 6) |
1393                                                 ((pp[0] & 0xe0) >> 2);
1394                                         rgb[2] = (pp[0] & 0x1f) << 3;
1395                                         break;
1396                                 case MWPF_TRUECOLOR332:
1397                                         rgb[0] = pp[0] & 0xe0;
1398                                         rgb[1] = (pp[0] & 0x1c) << 3;
1399                                         rgb[2] = (pp[0] & 0x03) << 6;
1400                                         break;
1401                                 default:
1402                                         fprintf(stderr, "Unsupported pixel format\n");
1403                                         return 0;
1404         }
1405
1406
1407     *(red) = rgb[0];
1408     *(green) = rgb[1];
1409     *(blue) = rgb[2];
1410     return 1;
1411 }
1412 #endif
1413
1414 #endif
1415   // wxUSE_NANOX
1416